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techtalk:ih:engmech01c [2025/08/01 17:53] – [Left Crankcase Oil Scavenge] hippysmacktechtalk:ih:engmech01c [2025/11/02 18:33] (current) – [Cylinder Boss] hippysmack
Line 361: Line 361:
     * 1957-1971 Sportster motors are 883cc (respectfully labeled "900")     * 1957-1971 Sportster motors are 883cc (respectfully labeled "900")
     * 1972-1985 Sportster motors are 1000cc.     * 1972-1985 Sportster motors are 1000cc.
-    * The cylinder studs have a different spacing than 900 cases. +      * The cylinder studs have a different spacing than 900 cases. 
-    * The cylinder spigot hole in the cases is wider to accommodate 1000 cylinders.+      * The cylinder spigot hole in the cases is wider to accommodate 1000 cylinders.
   * **Tappet Block Clearance**:   * **Tappet Block Clearance**:
     * 1957-1971 cases, the side of each cylinder base is slightly milled at the intake tappet and is barely noticeable.     * 1957-1971 cases, the side of each cylinder base is slightly milled at the intake tappet and is barely noticeable.